# Thread: Diagonal matrix and its elements

1. ## Diagonal matrix and its elements

Whether zero can be there in the main (Principal) diagonal of a Diagonal matrix?

Offshoot of the above question whether (square) null matrix can be called as a Diagonal matrix.

Kindly guide me.

with warm regards,

Aranga

2. ## Re: Diagonal matrix and its elements

Yes, there can be a 0 on the main diagonal of a diagonal matrix. That means that 0 is an eigenvalue, that the determinant of the matrix is 0, and that the matrix is not invertible.

Yes, the 0 matrix can be considered a diagonal matrix- just not a very interesting one.

3. ## Re: Diagonal matrix and its elements

Thanks. Very useful.

4. ## Re: Diagonal matrix and its elements

Yes, 0 can be on the diagonal of a diagonal matrix. You cam always ask your question concerning diagonal matrix at https://studydaddy.com/algebra-homework-help and get the precise answer with all the necessary examples.